7th grade science vocabulary review #1

What is science?

• Thinking about things and making up stuff.

• An organized way of learning about the natural world.

An observation is

• prior knowledge used to figure something out to develop a hypothesis

• a widely accepted hypothesis

• the first step to carrying out science using the senses

An hypothesis is

• a testable statement

• a wild guess

• a scientific theory

The independent variable

• a testable statement

• the variable that a scientist observes

• a subject in an experiment that is test by measurement

• variable in an experiment that the scientist manipulates

The dependent variable is what the scientist

• manipulates

• observes

• guesses about

• theorizes

Data

• guesses about numbers

• facts or statistics

• a character from Star Trek: the new generation

A frame of reference is

• the direction and distance from a beginning to end

• group of objects whose placement can be used for comparison

• a push or pull that changes the speed or direction of something

Displacement is

• a graph used to show changes in motion over time

• a measure of how long it takes an object to get somewhere

• friction force

• direction and distance from a starting point to an ending point

Speed is

• the overall force actin on an object

• opposition force

• a measure of how long it takes an object to get from one place to another

• tendency of an object to resist a change in its motion

A line graph is

• a graph used to show changes in motion over time

• a push or pull

• the direction an distance from start to finish

• opposition force